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SYSTEM10

ANALOGINPUTCARDS

1.E.2.10A16-4C

1GENERALDESCRIPTIONANDSPECIFICATIONS

The Model 10A16-4C is designed for high-accuracy temperature measurement using

platinum

Resistance Temperature Detectors (RTD's). Precision constant-current

excitation is provided for four independent sensor channels, which may be intermixed

as required. RTD inputs are normally set for four-wire cabling, with maximum excita-

tion of one milliampere and input impedance of 10 MΩ, to eliminate common self-heat-

ing and cable-loading errors. However, for an RTD channel with shared current return

and sense signals, three-wire mode is available, if desired, via an internal jumper set-

ting (as explained in Section 3.a, below).

ADDITIONAL10A16-4C SPECIFICATIONS

RTD Types: Platinum; DIN (European) standard with “ice-point” resistance of 50, 100,

or 200 ohms, or American standard with “ice-point” of 100 ohms

Range and Resolution: See Table 1, below; automatically selected—on an individual

channel basis—when the channel is configured; for System 10 channel “type” codes

assigned to 10A16-4C data channels, see Table 1; for

high RTD resolution, using a

specially modified 10A16-4C card, see Section 3.c, below

Linearization: Internal digital linearization; maximum error: ±0.1°C (±0.2°F)

Excitation (per channel): Nominal 5 V-DC; 1 mA, maximum

Amplifier (per channel):

Input Impedance (Differential): 10 megohms

Offset: Initial: ±0.1 mV; vs. Temperature: ±0.5 µV/°C; vs. Time: ±5 µV/month

Gain Accuracy: ±0.02% of full scale

Gain Stability: vs. Temperature: ±25 ppm/°C; vs. Time: ±20 ppm/month

Filter (per channel): 3-pole modified Butterworth; 3 dB down at 2 Hz; 60 dB down at

25 Hz

Step-Response Settling Time (Full-Scale Output):

To 1% of final value: 0.6 sec

To 0.1% of final value: 0.8 sec

To 0.02% of final value: 1.5 sec

Total System Accuracy(typical, including Model 10A16-4C and system data collec-

tion and processing): see Table 1, below

Auxiliary Outputs: Filtered outputs available on mainframe wire-wrap pins

MODEL10A16-4C

QUADPLATINUMRTD

C

ONDITIONERCARD

GENERALDESCRIPTIONANDSPECIFICATIONS10A16-4C.1

Product specificaties